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Finding the Fourth Proportional to 29,940.98, 44,911.80 and 12,841.61

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Solution

The fourth proportional to 29,940.98, 44,911.80 and 12,841.61 is: 19,262.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,940.98 : 44,911.80 = 12,841.61 : x
  2. Step 2: Convert to fraction form
    29,940.98/44,911.80 = 12,841.61/x
  3. Step 3: Cross multiply
    29,940.98x = 44,911.80 × 12,841.61
  4. Step 4: Simplify right side
    29,940.98x = 576,739,595.44
  5. Step 5: Solve for x
    x = 576,739,595.44/29,940.98
  6. Step 6: Final answer
    x = 19,262.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.